Breeding method of new strains of Penaeus monodon resistant to fluctuations in salinity

A technology of penaeus monodon and cultivation method, applied in application, climate change adaptation, fish farming, etc., can solve problems such as weak adaptability, and achieve the effects of ensuring timeliness, optimizing screening effect, and strong universality

Active Publication Date: 2019-11-12
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI +1
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Problems solved by technology

[0002] Penaeus monodon has wide salinity, can withstand high temperature and low oxygen, and has weak adaptability to low temperature

Method used

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  • Breeding method of new strains of Penaeus monodon resistant to fluctuations in salinity

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Embodiment Construction

[0033] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so it only shows the composition related to the present invention.

[0034] Such as figure 1 As shown, a method for cultivating new varieties of Penaeus monodon resistant to fluctuations in salinity, the salinity of the cultured water is divided into several gradient ranges, and the median salinity of each gradient range is the first salinity in order from high to low range to the 4th salinity range, and the 5th salinity range to the 9th salinity range; the adjustment operation time of each salinity range corresponds to a specific period of time; put some P. The step range is cultivated in sequence from the first salinity range to the ninth salinity range; by using several step ranges for salinity-adjusted far...

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Abstract

The invention discloses a method for cultivating a new strain of Penaeus monodon resistant to salinity fluctuations. Starting from the domestication and screening of shrimp seedlings, at the beginning each salinity range adopts the upper and lower limit values ​​and the salinity decreases slowly at the same time, gradually increasing from the initial high level. Probe down to a salinity of about 15, so as to ensure that the median of each salinity range gradually decreases to reduce the average salinity, so that Penaeus monodon mainly adapts to the gradually low-salinity growth environment in the stage of juvenile shrimp; After the above-mentioned salinity drop is completed, continue to keep the upper limit salinity and the lower limit salinity down at the same time, but the fluctuation range formed by the difference between the upper and lower limits begins to increase significantly during the decline, and as the fluctuation range of salinity changes At the same time, the lower limit of the salinity range is gradually lowered to the lowest level. At this time, it is basically close to the adult shrimp, and its own stress resistance ability is also stronger. The overall trend is to ensure that the salinity of the aquaculture water body decreases slowly and gradually. It also enables P. monodon to adapt to large fluctuations in salinity.

Description

technical field [0001] The invention relates to a technique for cultivating a new variety of Penaeus monodon, in particular to a method for cultivating a new variety of Penaeus monodon resistant to fluctuations in salinity. Background technique [0002] Penaeus monodon is eurysalinity, can tolerate high temperature and low oxygen, and has weak adaptability to low temperature. Strong disease resistance. The individual is large, the shell is thicker, and the edible ratio is lower than that of Chinese prawns. The meat is delicious and nutritious. The body shell is relatively solid and can withstand being caught by hand. After leaving the water, it has a strong endurance to dry and expose to the air, so it can be sold as a live shrimp. Its adaptability to salinity ranges from 5 to 25, and the closer to 10, the faster the growth. Coastal and estuary beaches that are suitable for the living habits of P. monodon can be used to build ponds to raise shrimp. The water source shoul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/59
CPCA01K61/59Y02A40/81
Inventor 姜松江世贵周发林黄建华杨其彬杨丽诗
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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